Dental tool.



No. 875,992. PATENTED JAN. '7,- 1908.

H. A. GOLLOBIN.

DENTAL TOOL.

APPLICATION FILED MAR. 19. 1007.

WITNESSES INVENTOR HARRY A. GOLLOBTN, OF NEWARK. NEW JERSEY.

DENTAL TOOL.

Specification of Letters Patent.

Patented Jan. '7, 1908.

Application filed March 19. 1907. Serial No. 863,221.

T 0 all whom it may concern:

Be it known that I, HARRY A. GoLLoniN, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Dental Tools; and 1 dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to figures of reference marked thereon, whichform a part of this specification.

This invention is designed to provide pliers or a 'combinatioi'i toolfor a dentists use, which is to be operated when a tooth is to beattached to the crown of another tooth, and where it is necessary tosolder the artificial tooth to the back of the adjoining tooth or teeth,in the mouth of the person.

The invention is designed to provide a tool that will fasten, to theartificial tooth, a gold backing which is commonly used, and to passthrough the backing to perforate it to allow the backing to be set overa pair of pins, which project from the artificial tooth; to distort orupset these pins to cause the backing to lie flat and tight against thetooth; to provide a means for cutting off these pins after they havebeen upset, and to thus furnish an instrument that will take up all thesteps necessary in the class of work mentioned herein.

The invention is illustrated in the accompanying drawing, in whichFigure 1 is a side view of the combination tool, and Fig. 2 is a topview of the same on an enlarged scale. Fig. 3 is a view of theartificial tooth to be attached, and Fig. 4 is a perspective view of thebacking, this backing being exaggerated in thickness in the drawings.Figs. 5 to 9 inclusive, are views illustrating the steps in which thistool is employed.

1 form the pliers of any usual handle portions 10 which are pivoted at11, and have the two projecting jaws 12 which are made somewhatelongated so as to allow a good view of the work being done. These jaws12 provide a space 18 between them, and on the ends where they clamptogether they are provided with the recesses 14, the purposes of whichwill be described. hereinafter. Secured to one side of one of the jaws12 is a plate 14 which has the projecting arms 15,

each arm having a perforation 16, these perforations being of differentsizes, according to the pin inuse on the tooth on which the work is tobe done. The plate 14 has a projecting edge 17 which has a recessedportion 18, and a lip 12) having a perforation 20 therein.

Attached to one of the jaws 12, and projecting therefrom, is a stud 21which has on its end a pin 22. When the tool is to be operated, a tooth23 which is to be secured in a patient's mouth, is provided with pins24, these pins being common as now used in the dentists art, and thesepins are made of platinum. in conjunction withthis toothis used a plateor backing 25 which goes next to the. tooth.

The first step is illustrated in Fig. 5, where the backing is taken andplaced on a rubber or other resilient block 26, and the pin is used. toperforate the backing with holes spaced so that they will go over thepins 24 on. the tooth. The backing is then placed over the pins as inFig. 6, and to make it fit tightly down thereon and burnish it, one ofthe arms 15, provided with a perforation 16 to tightly lit the pin onthe tooth being treated, is placed over the pin and a pressure exertedthereon, and the tool is rapidly twisted to the right and left, and inthis way the backing is flattened out at pins and is caused to he veryclose to the tooth. 1 next subject each pin to pressure from the ends ofthe arms 12, where the recesses .14 will engage each pin 24 and flattenit out, and. force it down on the backing 25, as shown in Fig. 7, theflattened portion 27 of each pin not only locking the backing againstremoval, but if the work is done close up, the spread .ing will forceitself down on the backing, and serve to bind it tighter against theartificial tooth 23.

In Fig. 8 I show sections of the pins, one before it has been distortedor upset by the pliers, and the other showing the result of thetreatment by the pliers. The pins 24 are now cut oil by setting them inthe recess 18 of the plate 141, when the jaws 12 are open, and thenoperating the handles 10 to bring the jaws together, whereby the pinsare cut off close up to the backing 25, leaving sufficient of the pinsto form a slight head. If desired, one of the pins 24 can be passed downthrough the perforation 20 in the lip 19, and the tooth will be held.better while the cutting is taking place.

Fig. 9 shows a finished article having the.

tively to perform each step in the process of affixing an artificialtooth by means of the pins, the backing and the solder, now commonlyemployed by dentists in this process.

Having thus described my invention, what I claim is 1. A dental toolcomprising a pair of hinged'members having handle portions, the freeends of the jaws of the members having abutting faces adapted to distorta post, a pin projecting from one of the members, a plate secured to onejaw and arranged to shear in conjunction with the other jaw, andburnishing arms on the plate provided with perforations for thereception of a post.

2. A dental tool comprising a pair of hinged members having handleportions, the free ends of the aws of the members having their abuttingfaces provided with recesses placed slightly out of alinement to distorta post pressed between them.

3. A dental tool comprising a pair of hinged members having handleportions, the jaws of the members having their abutting faces recessedto distort a post pressed between them, and a plate secured to one jawand adapted to have a shearing action on the other jaw to out off thepost.

4. A dental tool comprising a pair of hinged members, the jaws of themembers being arranged to distort a post placed between them, a platesecured to one jaw and having a shearing action with the other aw, theshearing edge of the plate being recessed, and burnishing armsprojecting from the plate beyond the jaw and having perforationstherein. c

In testimony, that I claim the foregoing, I have hereunto set my handthis 15th day of March 1907.

HARRY A. GOLLOBIN. l/Vitnesses:

WVM. H. OAMFIELD, E. A. PELL.

